Dye solution and process for making and utilizing same



Patented Mar, d, W24

r as tn er;

MEL Llll'fllTm, BASEL, SWITZERLW, ASSIGNOR 530 if.

R. GEIGY A. Ga, 015'. BASEI.

swrrzmnnn'n, A CORPORATION 015' SWITZERLAND. DYE SQJLUTEON AND PROCESS FOR MAKING AND UTILIZING- SAME.

13o Drawing.

To all whom it may concern:

Be it known that l, KARL Lii'rnN, a citizen of the Swiss Republic, and resident of Basel, Switzerland, have invented Dye Soa lotions and Processes for Making and Utilizing Same, of which the following is a full, clear, and exact specification. 7

As well known, the organic dyestuffs of basic or acid nature are utilized for dyeing it textile fibres, by dyeing in a neutral or slightly acid solution, with or without mordant, at a relatively high temperature, or by fining the printed dyes by steaming.

I have found that dyeings can be obtained is at ordinary temperatures, which are fast to washing and rubbing, if dye solutions are employed which contain, with or without a thickening substance, about 10 to of at least one chloracetic acid, as monochloso racetic acid, dichloracetic acid, trichloracetic acid, or a mixture of several of these acids. When used in printing, these solutions show the advantage that the steaming can be omitted. The present invention as relates consequently to dye solutions characterized by a content of one or several of the specified acids, to a recess for the mam ufacture of these dye so utions, to a process for producing with these dye solutions dyeso ings and print-ings on textile fibres and other substances, as wood, paper, feathers, leather,

rs, straw, tagal, artificial substances etc.

and finally to the dyeings and printings obtained with these dye solutions.

The process for the manufacture of the said dye solution can be dyeing quality of the dyestufi, in as far as basic yestufis require an addition of tannin for their employ on cotton.

(ill

ture of these solutions is that the dyestuds have been made and remain entirely soluble.

The following examples illustrate the preparation and the composition of the new as dye solution and their use for dyeing and printing purposes.

Example I.

i. gr. of a basic dyestufi' is dissolved in 5 so gr. acetic acid of 40 or cent and 20 gr.

of boiling water; to t e solution thus obtained there are added 52 g. of tragacanth gum thickening and 2 gr. of tannin, 20 gr. oi monochloracetic ac1d are then added guided by the The essential condition for the manufac Application filed June 28, 1922. SerialNo. 571,098.

and after dissolution the dye-solution is so ready for use, I

If instead of monochloracetic acid, there is employed lactic acid, thislatter is used in form of a solution of a specific gravity of 1.21.

After printin the fabric with this dye, the fabric is ried and passed, without steaming, through a cold or hot bath of tartar emetic containing, as usual, 10 gr. of tartar emetic to a liter of water. Afterwards the fabric is well rinsed and soaped. The dyestufi is regularly and uickly fixed and cannot be removed by ru hing.

Example 11'.

' e For the merchandises half of silk and half of cotton there is prepared in the same mannor as for the cotton a dyeing bath having the followin composition;

1 gr. of basic yestuif is dissolved in 5 gr. of acetic acid of 40 per cent and 20 gr. of boiling water and there are added afterwards 42 gr. of cold water 10 gr. of tragacanth gum thickening 2 gr. of tannin and .20 ,gr. of monochloracetic acid.

The fabric pieces are impregnated with this d eing bath in a fulling mill and I presse out in such a manner that in the at moistened state they show an increase of weight of 100 per cent. After they have been well dried, they are assed, without steaming, through the usua bath of tartar emetic, rinsed and soaped. 1

Eat-ample III.

For wool and silk the dye solution is prepared, in a manner similar'to that of Example 1 and formed of 1' gr. of acid dyestufi' dissolved in 5 gr. of acetic acid of 40 per cent and 20 gr. of hot water and there are added 44 gr. of cold water 10 gr. of tragacanth gum thickening and gee 20 gr. of monochloracetic acid.

The fabric is dyed in pieces in a falling mill and the dyeing terminated without steaming.

The new dye solutions are utiiizabie not F only in the industry for dyeing and printing textile fabrics, but can a so owing to their stability and their property of being eerily I trial art, as they permit manageable be used for purploses of indusa hit erto unknown fast dyeing of textile fabrics by applying the ,dye solution by painting or sprinkling. They are utilizable in the same manner for paper, straw. leather, wood, feathers, furs, artificial substances etc.

What I claim is:

1. As a new article of manufacture, a new dye solution containing at least one chloracetic acid.

2. As a new article of manufacture, a new dye solution containing a thickening and at least one chloracetic acid.

3. As a new article of manufacture, a new dye solution containing tannin and at least one chloracetic acid.

d. As a new article of manufacture, a new dye solution containing a thickening and tannin and at least one chloracetic acid.

5. The herein described process for the manufacture of dye solutions consisting in introducing at least one chloracetic acid into a dyestufi solution.

6. The herein described process for the manufacture of dye solutions consisting in least one chloracetic acid introducing at solution containing a thickinto a dyestufi ening.

7. The herein described process for the manufacture of dye solutions consisting in introducing at least one chloracetic acid into a dyestufi solution containing tannin.

8. The herein described process. for the manufacture of dye solutions consisting in introducing at least one chloracetic acid, into a dyestufi solution containing a thickening and tannin.

9. The herein described process for producing dyeings and printings on textile fabrics, paper, straw, leather, wood, feathers, furs, artificial substances etc. consisting-in applying on the said merchandises, at ordinary temperature, a dye solution contain ing at least one chloracetic acid.

10. The herein described process for producing dyeings and printings on textile fabrics, paper, straw, leather, wood, feathers, furs, artificial substances etc. consisting in applying on the said merchandises at ordinary temperature, a dye solution containing a thickening and at least one chloracetic acid. A

11. The herein described process for producing dyeings and printings on textile fabrics, paper, straw, leather, wood, feathers, furs,

artificial substances etc. consisting in applying on the said merchandises at ordinary temperature, a dye solution containing tannin and at least one chloracetic acid and passing the merchandises subsequently, without steaming, through a bath of tartar emetic.

12. The herein described process for producing dyeings and printings on textile fabrics, paper, straw, leather, wood, feathers,

furs, artificial substances etc. consisting in applying on the said merchandises, at ordinary temperature, a dye solution containing a thickening and tannin and at leastone chloracetic acid and passing the Inerchandises subsequently, without steaming, through a bath of tartar emetic.

In witness whereof I have hereunto signed. my name this 13th day of June 1922, in the presence of two subscribing witnesses.

KARL LT ITTTN.

TVitnesses:

JULIA A. Dt'ms'r, AMAND Rrrnnn. 

